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New sensor detects gaseous chemical weapon surrogates in 45 seconds

Using lasers and tuning forks, Pacific Northwest National Laboratory scientists have developed a chemical weapon agent sensing technique that promises to meet or exceed current and emerging defense and homeland security chemical detection requirements. The technique, called Quartz Laser Photo-Acoustic Sensing, or "QPAS," is now ready for prototyping and field testing. PNNL has demonstrated QPAS's ability to detect gaseous nerve agent surrogates. The instrument is based on Laser Photo-Acoustic Sensing and infrared Quantum Cascade Lasers.

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Keywords: sensor, detects, gaseous, chemical, weapon, surrogates, seconds, detect, gaseou, surrogate, second

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